Moonlight hanging

My original tumblr post was here.  Original text:

eroticartrainbow:

http://eroticartrainbow.tumblr.com   said:

Artist unknown – (If anyone has any further information, feel free to let us know at: http://eroticartrainbow.tumblr.com/submit). Please include the post number when doing so (see instructions on our homepage).

I can at least provide the source.  This is a crop of Ultretomba #253:  La quercia dei supplizi (“The oak of torments”).
Image source ComicVine.